EP0821135A1 - Energieerzeugung mittel eines kombinierten Gas- und Kohlekreislaufs - Google Patents
Energieerzeugung mittel eines kombinierten Gas- und Kohlekreislaufs Download PDFInfo
- Publication number
- EP0821135A1 EP0821135A1 EP96202076A EP96202076A EP0821135A1 EP 0821135 A1 EP0821135 A1 EP 0821135A1 EP 96202076 A EP96202076 A EP 96202076A EP 96202076 A EP96202076 A EP 96202076A EP 0821135 A1 EP0821135 A1 EP 0821135A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- combustion chamber
- installation
- combustion
- compressor
- turbine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K21/00—Steam engine plants not otherwise provided for
- F01K21/04—Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas
- F01K21/047—Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas having at least one combustion gas turbine
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
Definitions
- the present invention relates to an installation for converting chemical energy stored in fuel into mechanical energy, comprising: a combustion chamber for combusting fuel supplied thereto; a compressor for compressing combustion air for supplying to the combustion chamber; and a turbine for causing combustion gases coming from the combustion chamber to expand, wherein the compressor is driven by the turbine.
- the object of the present invention is to provide such an installation which is less bulky and which can thus be operated at lower cost but wherein no concessions are made in efficiency.
- water supply means are arranged for adding water or steam to the combustion air before it reaches the combustion chamber.
- the water supply means are adapted to supply water to the combustion air in the compressor.
- the water Since the heating process takes place under pressure, the water will also have to be supplied to the combustion chamber under pressure; supplying the water to the combustion air during compression obviates a separate interstage cooler.
- the water supply means are preferably adapted to supply water or steam to the compressor such that isothermal compression is enhanced.
- the efficiency is improved still further when a heat exchanger is placed, the heated side of which is connected between the compressor and the combustion chamber and the heating side of which is placed between the outlet duct of the turbine and the outlet for the flue gases.
- the installation according to the present invention shown schematically in the annexed drawing comprises a turbine 1 which is adapted to cause a mixture of combustion gases and steam to expand.
- a compressor 2 is arranged on the same shaft as turbine 1. The compressor 2 is adapted to compress the combustion gases for supplying to the combustion chamber.
- a generator 3 is finally arranged on the same shaft. Although it will be apparent that it is simplest to place all three of these devices on the same shaft, it will be also apparent that it is possible to couple them directly to each other in a different manner.
- the installation according to the invention further comprises a combustion chamber 4.
- the installation comprises a heat exchanger 5, a particle removal device 6 and a chimney.
- the outlet connection of the compressor is connected to the heated side 9 of heat exchanger 5 by means of a line 8, while the outlet of the heating side 9 of heat exchanger 5 is connected by means of a line 10 to combustion chamber 4.
- the outlet connection of combustion chamber 4 is connected to a particle removal device 6 by means of a line 11, while the inlet connection of the particle removal device 6 is connected to the outlet connection of turbine 1 by means of a line 12.
- the outlet connection of turbine 1 is connected by means of a line 13 to the heating side 14 of heat exchanger 5, while the outlet connection of the heating side 14 of heat exchanger 5 is connected to the chimney by means of a line 15.
- a "bypass" line 16 is arranged which by-passes the heating chamber 4.
- a supply line 17 is arranged for supplying the compressed air to compressor 2, while a feed line 18 is arranged for supplying water to compressor 2.
- the compressor 2 is adapted to compress air which is supplied via the line 17.
- the air has of course previously undergone a cleaning treatment.
- the relevant air is pressurized in compressor 2 to a pressure in the order of magnitude of 8 bar, which pressure can also lie between 5 bar and 15 bar, preferably between 6 bar and 12 bar, and which can lie more particularly between 7 bar and 10 bar.
- the pressure in question has a value of approximately 8 bar.
- the compressor 2 is further adapted to inject water or steam into the various compressor stages or into the outlet of the compressor. This assumes water at a temperature of 20°C to 30°C.
- the gas mixture leaving the compressor herein has a temperature of approximately 90°C to 100°C.
- the relevant gas mixture is supplied via line 8 to the heating side 9 of heat exchanger 5, where it is heated to about 400°C to 550°C, this of course at the same pressure of approximately 8 bar.
- the relevant gas mixture is fed to the combustion chamber at this pressure, under which the entire combustion chamber functions. In the combustion chamber the oxygen present in the gas mixture is used for the combustion, while the other gases absorb the thermal energy created during combustion.
- fuel for instance in the form of coal, particularly powdered coal
- This fuel supply line 19 is provided with means, for instance in the form of a coal pump, for increasing the pressure at which the fuel is supplied.
- means for instance in the form of a coal pump, for increasing the pressure at which the fuel is supplied.
- powder-like, V-shaped or granular fuel it is possible to make use of a column for this purpose.
- combustion gases in combination with the steam of course, leave the combustion chamber at a temperature between 800°C and 1000°C, and in particular at roughly 900°C.
- This bypass line can otherwise also be connected after the optional particle removal device 6; the gas flowing through the "bypass" line will generally no longer be contaminated with particles.
- the relevant gases are then supplied to a particle removal device 6, for example a cyclone.
- the combustion gases are contaminated with particles particularly when solid fuels are used. These can be removed in the relevant particle removal device. It is otherwise possible to make use of different types of particle removal device, for instance electrostatic filters.
- the cleaned gases are subsequently supplied to a turbine 1, where the gases are expanded to a pressure of 1 bar.
- the turbine 1 is driven which also drives the generator 3 by means of its mechanical connection thereto, in addition to the compressor 2.
- the expanded gases are hereafter supplied to a heat exchanger where the combustion gases relinquish a large proportion of their heat to the compressed combustion air and the cooled combustion gases, which have cooled to a temperature of about 140°C, leave the process via a chimney 7.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96202076A EP0821135A1 (de) | 1996-07-22 | 1996-07-22 | Energieerzeugung mittel eines kombinierten Gas- und Kohlekreislaufs |
EP97200464A EP0821136A1 (de) | 1996-07-22 | 1997-02-17 | System zur Erzeugung von Energie |
EP97202269A EP0821137A1 (de) | 1996-07-22 | 1997-07-22 | System zur Erzeugung von Energie |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96202076A EP0821135A1 (de) | 1996-07-22 | 1996-07-22 | Energieerzeugung mittel eines kombinierten Gas- und Kohlekreislaufs |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0821135A1 true EP0821135A1 (de) | 1998-01-28 |
Family
ID=8224218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96202076A Withdrawn EP0821135A1 (de) | 1996-07-22 | 1996-07-22 | Energieerzeugung mittel eines kombinierten Gas- und Kohlekreislaufs |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0821135A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO325913B1 (no) * | 2005-03-30 | 2008-08-18 | Statoil Asa | Kraftverk og fremgangsmate for kombinert kraft- og varmegenerering. |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1007140A (fr) * | 1948-02-27 | 1952-05-02 | Rateau Soc | Perfectionnements aux turbo-moteurs |
FR60902E (fr) * | 1948-10-11 | 1955-02-21 | Rateau Soc | Perfectionnements aux turbomoteurs |
US4281511A (en) * | 1980-02-27 | 1981-08-04 | Neale Abas B | Hydro-flow supra-turbine engine |
GB2087252A (en) * | 1980-10-15 | 1982-05-26 | Stal Laval Turbin Ab | Combined gas and steam turbine plant |
EP0209820A1 (de) * | 1985-07-22 | 1987-01-28 | General Electric Company | Dampf- und Wassereinspritzung in einem kombinierten System |
EP0361065A1 (de) * | 1988-09-28 | 1990-04-04 | Westinghouse Electric Corporation | Kraftgenerationsmethode mit festem Brennstoff für eine Gasturbine |
EP0444913A1 (de) * | 1990-02-27 | 1991-09-04 | Turbine Developments Aktiengesellschaft | Gasturbine |
WO1993024703A1 (en) * | 1992-05-29 | 1993-12-09 | Chemrec Aktiebolag | A process for recovering energy from a combustible gas |
DE4335136A1 (de) * | 1992-10-22 | 1994-04-28 | Evt Energie & Verfahrenstech | Verfahren und Vorrichtung zur Durchführung des Verfahrens zur Erzeugung von Gasen zum Betreiben einer Gasturbine in einem kombinierten Gas- und Dampfkraftwerk |
-
1996
- 1996-07-22 EP EP96202076A patent/EP0821135A1/de not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1007140A (fr) * | 1948-02-27 | 1952-05-02 | Rateau Soc | Perfectionnements aux turbo-moteurs |
FR60902E (fr) * | 1948-10-11 | 1955-02-21 | Rateau Soc | Perfectionnements aux turbomoteurs |
US4281511A (en) * | 1980-02-27 | 1981-08-04 | Neale Abas B | Hydro-flow supra-turbine engine |
GB2087252A (en) * | 1980-10-15 | 1982-05-26 | Stal Laval Turbin Ab | Combined gas and steam turbine plant |
EP0209820A1 (de) * | 1985-07-22 | 1987-01-28 | General Electric Company | Dampf- und Wassereinspritzung in einem kombinierten System |
EP0361065A1 (de) * | 1988-09-28 | 1990-04-04 | Westinghouse Electric Corporation | Kraftgenerationsmethode mit festem Brennstoff für eine Gasturbine |
EP0444913A1 (de) * | 1990-02-27 | 1991-09-04 | Turbine Developments Aktiengesellschaft | Gasturbine |
WO1993024703A1 (en) * | 1992-05-29 | 1993-12-09 | Chemrec Aktiebolag | A process for recovering energy from a combustible gas |
DE4335136A1 (de) * | 1992-10-22 | 1994-04-28 | Evt Energie & Verfahrenstech | Verfahren und Vorrichtung zur Durchführung des Verfahrens zur Erzeugung von Gasen zum Betreiben einer Gasturbine in einem kombinierten Gas- und Dampfkraftwerk |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO325913B1 (no) * | 2005-03-30 | 2008-08-18 | Statoil Asa | Kraftverk og fremgangsmate for kombinert kraft- og varmegenerering. |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): NL |
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RBV | Designated contracting states (corrected) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 19980729 |